6Rules may—
(a)make provision about the form and content of applications under this Act;
(b)make provision requiring applications under this Act to be supported by such evidence as the rules may provide;
(c)make provision about when an application under this Act is to be taken as made;
(d)make provision about the order in which competing applications are to be taken to rank;
(e)make provision for an alteration made by the registrar for the purpose of correcting a mistake in an application or accompanying document to have effect in such circumstances as the rules may provide as if made by the applicant or other interested party or parties.